Crate validate_ro

Validation Library

A flexible, extensible validation framework with support for:

• Synchronous and asynchronous validation
• Complex nested field validation
• Custom validation rules
• MongoDB integration for unique checks
• Default values and error accumulation

Core Concepts

1. Validators: Implement the Validator trait to create validation rules
2. Rules: Combine multiple validators with optional default values
3. FormValidator: Validate complete forms/objects with field-level rules

Example: Basic Usage

use validate_ro::{Rules, FormValidator};
use serde_json::json;
use validate_ro::rules::Rule;

// Create validation rules
let email_rule = Rules::new()
    .add(Rule::required())
    .add(Rule::email(None));

let age_rule = Rules::new()
    .add(Rule::integer())
    .add(Rule::min_value(18.0))
    .default(json!(21)); // Default value if null

// Build form validator
let validator = FormValidator::new()
    .add("email", email_rule)
    .add("age", age_rule);

// Validate data
let data = json!({"email": "test@example.com"});
match validator.validate(&data) {
    Ok(valid_data) => {
        // age will be 21 (default value)
        println!("Valid data: {:?}", valid_data);
    },
    Err(errors) => {
        eprintln!("Validation errors: {:?}", errors);
    }
}

Modules

error

rules

Built-in Validation Rules

traits

Macros

rules

Structs

FormValidator

Validates complete forms/objects with field-level rules

Rules

Container for multiple validators with optional default value